Improvement in bed-springs



w. w. mulas..

Bed-Springs. N0. 144,984. Patented Nov-25,1873.

UNITED STATES PATENT OFFICE.

A WILLIAM W. JONES, OF PHILADELPHIA, PENNSYLVANIA.

IMPROVEMENT IN BED-SPRINGS.

Specification forming partici' Letters Patent No. 144,984, datedNovember 25, 1873; application filed May 14, 1873.

To all whom. it may concern: Be it known that I, NVM. W. JONES, ofPhiladelphia, Pennsylvania, have invented an Improved CompoundBed-Spring, of which the following is a specication:

The object of my invention is to prevent lateral swaying of the slatsand springs of a bedstead, without decreasing the number or increasingthe Width of the said slats, and I attain this object in the mannerplainly shown by the figure in the accompanying drawing, by constructingthe springs in pairs of a single piece of wire, so bent as to form twocoupled spirals, A and B, each surmounted by an independent loop, b, forthe reception of a slat.

It has been usual heretofore to construct compound or coupledbed-springs with a single loop, extending across the space between andsupported by the two spirals, but the objection to this plan is that theslats, owing to the space occupied by the two spirals, must be at aconsiderable distance apart, an objection which has been but imperfectlyovercome by increasing the width of the sla-ts.

By providing each of the coupled spirals with a separate loop, b, inaccordance with my invention, lateral swaying of the slats and springsis as eiectually prevented as by the ordinary arrangement, while theadvantages are obtained of a direct pressure upon the springs, and ofthe use of a number of com- WM. W. JONES.

Witnesses:

WM. A. STEEL, HUBERT HowsoN.

